Gottlob kaiser



GOTTLOBVKAISER, OF NEW YORK, N. Y.

Lat-ters Patent No.l 78,097, dated May 1.9 1868:`

IMPROVEMENT IN PEBMUTAI'ION-LOOKS.

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TO ALL WHOM IT MAY ONCERN:

Be it known that I, GoTTLoB KAISER, ot' New York, '15 Christie street,inthe county and State of New` York, have invented a new and improvedCommutation-Lock; andv I do hereby declaro that the following is a full,clear, and exact description thereof, which will enable thoseV skilledin the' art to make and use the same,

reference being had to the accompanying drawing, forming pai-t of thisspecification, in which drawing- Figure 1 represents a longitudinalsection of this invention. Figure 2 is a side elevation ot' the same.Figure 3 is a transverse section of the same. Figure 4 is a sideelevation. Y Figure 5, a sectionalplan, showing my invention appliedltoa common door-lock. -Similar letters indicate corresponding parts.

This invention relates to an improvement in locks of' that class, theoperationtof which depends upon/a series of rings with internal notches,in combination with stumps secured in a rod or bolt, which passesthroughthe rings in such a manner. that the bolt cannot be withdrawn until allthe rings have beenV brought inthe required position. Y i

y The invention consists in the arrangement of adjustable iinger-'pecesin the rings, insuch a manner that the setting of the rings 'can beaccomplished in the darkness as Well as in the day-time; also, in makingeach of the rings of two parts, one inside the other, the innerringsbeing provided with tivo ormorc holes, in such n; manner that theset of each ring can be changed atpleasure.

A represents a cylindrical case, made of brass or any othersuitablematerial, and provided with a head at each end, said heads beingperforated with holes to admit the bolt B. Y This boltis` round, and it'passes through u series of rings, C, which -occupyl theispace betweenthe heads f the case A, and which are fitted between stumps @projectingfrom the bolt B, as clearly shown in fig. lof` the drawing, in such amanner thateach ring can be turned on the bolt independent of the'other;and that the boltis prevented from. being moved in a ldngi` tudinaldirection, until all the rings are turned in such a positionthat theirnotches, n, fig. 3, coincide with the stumps. i i

Eachof the rings C is provided with Va jacket, b, which can be turnedon4 the ring, und which is secured in the required position by athumb-piece, c, passing .through a hole .in the jacket, andscrewing intoone of the holesd in the ring; two or more such holes being provided, sothat the position ofthe thumb-pieces in relation i to the notches can bechanged. The thumb-picces c project through a segmental aperture cut inthe case A, so

` that the required set can be given to the rings.

` By using the thumb-pieces c, I am enabled vto set my rings in thedarkness as ivell as in broad daylight,

and by providing each ring with a 'jacket and 'with two or more holes,Iam enabled to change the set, so that no unauthorized person can openthe lock. Figs. 2 and 5 show the set at which the lock'can be openedwhen the thumb-pieces are arranged as shown. i K v My lock can also becombined with ancommon 'door-lock, by providing the stem of the knob K,iig. 5, with a square part, so that the knob cannot be turned until thebolt is withdrawn.

What I claim as new, and desire to secure by Letters Patent, is'

The thumb-pieces c, in combination'tvith the rings C, lolt B, stumps a,and case A, arranged, constructed and operating substantially as and for-thepurpose set forth. i i

i GOTTLOB KAISER.

Witnesses:

' W. HAUFF,

Gustav Buse.

